🐛 Fix issue with schema mismatch on checkout response (#7)

Author: chuckcarpenter

package.json

@@ -26,7 +26,7 @@
     "@astrojs/preact": "^5.0.0",
     "@astrojs/vercel": "^10.0.0",
     "@libsql/client": "^0.17.2",
-    "@polar-sh/astro": "^0.4.9",
+    "@polar-sh/astro": "^0.5.0",
     "@preact/signals": "^2.8.2",
     "@vercel/analytics": "^1.6.1",
     "@vercel/speed-insights": "^1.3.1",